Clinical and Radiographic Effect, Implant, Thick-gingiva, Thin-gingiva
Conditions
Brief summary
To evaluate a star-shaped incision technique to thick-gingiva and thingingiva patients treated with implant-supported fixed prosthesis. The star-shaped incision would be an effective and simple method to reconstruct gingival papillae and avoid the gingival recession in thick-gingiva patients treated with implant-supported fixed prosthesis, and it is worthy of clinical extend.
Detailed description
Objective: To evaluate a star-shaped incision technique to thick-gingiva and thin-gingiva patients treated with implant-supported fixed prosthesis. Methods and Materials: 24 patients received cross-shaped incision were assigned into thick-gingiva group (16 cases) and thin-gingiva group (8 cases). Follow-up examination was carried out 3 and 12 months after final restoration. Clinical and radiographic evaluation including gingival papilla height, modified plaque index, modified sulcus bleeding index, periodontal depth, and crestal marginal bone level were utilized.
Interventions
DIAGNOSTIC_TESTThe biotype of gingiva
The biotype of gingival was determined by periodontal probe.
Sponsors
Wen Luo
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
22 Years to 58 Years
Healthy volunteers
Yes
Inclusion criteria
1. Good general health, no chronic systemic diseases. 2. All subjects included in this study needed to have one missing premolar or molar teeth with adjacent natural teeth. 3. All subjects included in this study had been treated with one bone-level implant insertion in the premolar or molar region. The patients had insufficient gingival papilla height (referred to contralateral natural tooth which also had insufficient gingival papilla height) and at least 2 mm of keratinized tissue width around the implant.
Exclusion criteria
1. Active periodontal infections. 2. Heavy smoking (\> 10 cigarettes per day).
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Papilla height | Between June 2019 and June 2021 | Presence/absence of papilla height was assessed visually according to the papilla index proposed by Jemt |
| Modified Plaque Index (mPI) | Between June 2019 and June 2021 | plaque accumulation around the marginal peri-implant tissue was assessed by the criteria of mPI |
| Modified Sulcus Bleeding Index (mBI) | Between June 2019 and June 2021 | the bleeding tendency of the marginal peri-implant tissue was evaluated using mBI |
| Probing Depth (PD, mm) | Between June 2019 and June 2021 | PD was assessed at the mid-buccal, mid-oral, mesial and distal aspects of the buccal surfaces of each implant with a standard periodontal probe, and final value was determined by the average of four aspects. |
| Gingival margin level (GML) | Between June 2019 and June 2021 | gingival margin level was assessed by calculating the vertical distance between the most apical point of gingival margin at the buccal aspect of the crown and line connecting the peak of the adjacent mesial and distal natural teeth (PMD) |
| The landmarks of first bone-implant contact (fBIC) and implant shoulder (IS) | Between June 2019 and June 2021 | fBIC-IS was defined as the vertical distance the first bone-implant contact to implant shoulder, and the distance was assessed at the mesial and distal aspect of implant, respectively. When the marginal crestal bone was located coronal to the IS, a positive (+) value was given, where a negative (-) value when located apically to the IS, the value was deemed as zero when IS and fBIC coincided. The crestal bone level at the time of impression taking was regarded as baseline. The known implant length was used for the calibration of dimensional distortion in the radiograph (the length of implant was 10 mm). |
Countries
China
Outcome results
None listed